145524193 has 2 divisors, whose sum is σ = 145524194. Its totient is φ = 145524192.

The previous prime is 145524191. The next prime is 145524209. The reversal of 145524193 is 391425541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136142224 + 9381969 = 11668^2 + 3063^2 .

It is a cyclic number.

It is not a de Polignac number, because 145524193 - 2¹ = 145524191 is a prime.

Together with 145524191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (145524191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72762096 + 72762097.

It is an arithmetic number, because the mean of its divisors is an integer number (72762097).

Almost surely, 2^145524193 is an apocalyptic number.

It is an amenable number.

145524193 is a deficient number, since it is larger than the sum of its proper divisors (1).

145524193 is an equidigital number, since it uses as much as digits as its factorization.

145524193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 34.

The square root of 145524193 is about 12063.3408722460. The cubic root of 145524193 is about 525.9911049689.

The spelling of 145524193 in words is "one hundred forty-five million, five hundred twenty-four thousand, one hundred ninety-three".